Division of Spill Prevention and Response

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APSC PS 9, Crude Oil Release to Secondary Containment



Incident Description

Incident Location Map

Location Trans-Alaska Pipeline System (TAPS) Pump Station 9, Tank 190. Pump Station 9 sits just off the Richardson Highway, eight miles south of Delta Junction and approximately 110 miles southeast of Fairbanks.
Product/Quantity Alaska North Slope Crude. Alyeska Pipeline Service Company (APSC) estimated 108,360 gallons (2,580 barrels) of oil were released to secondary containment.
Cause During a scheduled maintenance shutdown of the pump station, a loss of power to the power- distribution center resulted in a command circuit designation to open the system relief valve and close the station block valves. The block valves could not close without power, allowing oil to flow from the TAPS line into Tank 190, and then out the tank vents into lined secondary containment. An incident investigation team was assembled to determine the root cause, and the results are pending.
Time/Date of Incident 10:30 AM on May 25, 2010
Situation Reports
05/25/2010 (PDF 36K)
05/26/2010 (PDF 37K)
05/27/2010 (PDF 35K)
05/28/2010 (PDF 288K)
06/01/2010 (PDF 38K)

04/08/2010 (PDF 38K) --FINAL

 
Photos
Views of cleanup operations at Pump Station 9. (Photo Date:  5/27/2010) Views of cleanup operations at Pump Station 9. (Photo Date:  5/27/2010) Views of cleanup operations at Pump Station 9. (Photo Date:  5/27/2010)  
Photos cleanup operations, 6/1/2010
>>View more photos from 6/1/2010
Views of cleanup operations at Pump Station 9. (Photo Date:  5/27/2010)  

Views of cleanup operations at Pump Station 9. (Photo Date:  5/27/2010) Views of cleanup operations at Pump Station 9. (Photo Date:  5/27/2010) Views of cleanup operations at Pump Station 9. (Photo Date:  5/27/2010)  
Photos cleanup operations, 5/27/2010
>>View more photos from 5/27/2010
Views of cleanup operations at Pump Station 9. (Photo Date:  5/27/2010)  

Photos cleanup operations, 5/26/2010 Photos cleanup operations, 5/26/2010 Photos cleanup operations, 5/26/2010  
Photos cleanup operations, 5/26/2010
>>View more photos from 5/26/2010
Photos cleanup operations, 5/26/2010  

Vacuum trucks that will be used to recover oil from the containment. (photo date: 5/26/2010) Tanker trailers that may be used to haul recovered oil to Valdez for reinjection. (photo date: 5/26/2010) View of the containment area. (photo date: 5/28/2010)  
Photos taken 5/26-28/2010   Aerial photos of the spill site.  

Various views of the tank and oil in containment at Pump Station 9. Various views of the tank and oil in containment at Pump Station 9. Aerial photos of the spill site.  
>> More photos from 5/25/2020
       

 

For more information

Tom DeRuyter, 451-2145